WO2011092737A1 - Equipement de retrait d'agrafes - Google Patents

Equipement de retrait d'agrafes Download PDF

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Publication number
WO2011092737A1
WO2011092737A1 PCT/JP2010/000484 JP2010000484W WO2011092737A1 WO 2011092737 A1 WO2011092737 A1 WO 2011092737A1 JP 2010000484 W JP2010000484 W JP 2010000484W WO 2011092737 A1 WO2011092737 A1 WO 2011092737A1
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WO
WIPO (PCT)
Prior art keywords
staple
striking
sheet bundle
unit
bundle
Prior art date
Application number
PCT/JP2010/000484
Other languages
English (en)
Japanese (ja)
Inventor
高橋正樹
Original Assignee
株式会社 東芝
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社 東芝 filed Critical 株式会社 東芝
Priority to PCT/JP2010/000484 priority Critical patent/WO2011092737A1/fr
Priority to JP2011551579A priority patent/JPWO2011092737A1/ja
Publication of WO2011092737A1 publication Critical patent/WO2011092737A1/fr
Priority to US13/560,072 priority patent/US20130168621A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C11/00—Nail, spike, and staple extractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H3/00—Separating articles from piles
    • B65H3/46—Supplementary devices or measures to assist separation or prevent double feed
    • B65H3/58—Articles spiked, threaded, cemented, or gummed together, to prevent double feed, e.g. piles with gummed edges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/006—Feeding stacks of articles to machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H7/00—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles
    • B65H7/02—Controlling article feeding, separating, pile-advancing, or associated apparatus, to take account of incorrect feeding, absence of articles, or presence of faulty articles by feelers or detectors
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/65—Apparatus which relate to the handling of copy material
    • G03G15/6538—Devices for collating sheet copy material, e.g. sorters, control, copies in staples form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4221—Removing package around stack
    • B65H2301/42212—Extracting staple from stapled set of articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/42—Piling, depiling, handling piles
    • B65H2301/422—Handling piles, sets or stacks of articles
    • B65H2301/4226—Delivering, advancing piles
    • B65H2301/42262—Delivering, advancing piles by acting on surface of outermost articles of the pile, e.g. in nip between pair of belts or rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/50—Auxiliary process performed during handling process
    • B65H2301/51—Modifying a characteristic of handled material
    • B65H2301/511—Processing surface of handled material upon transport or guiding thereof, e.g. cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2404/00—Parts for transporting or guiding the handled material
    • B65H2404/10—Rollers
    • B65H2404/18—Rollers composed of several layers
    • B65H2404/186—Rollers composed of several layers with electro-conductive layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/30—Numbers, e.g. of windings or rotations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/50—Occurence
    • B65H2511/52—Defective operating conditions
    • B65H2511/521—Presence of foreign object or undesirable material, i.e. material of another nature than the handled material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/20—Sensing or detecting means using electric elements
    • B65H2553/25—Contact switches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/40—Sensing or detecting means using optical, e.g. photographic, elements
    • B65H2553/41—Photoelectric detectors
    • B65H2553/412—Photoelectric detectors in barrier arrangements, i.e. emitter facing a receptor element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2553/00—Sensing or detecting means
    • B65H2553/60—Details of intermediate means between the sensing means and the element to be sensed
    • B65H2553/61—Mechanical means, e.g. contact arms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2555/00—Actuating means
    • B65H2555/20—Actuating means angular
    • B65H2555/26—Stepper motors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2557/00—Means for control not provided for in groups B65H2551/00 - B65H2555/00
    • B65H2557/30—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof
    • B65H2557/33—Control systems architecture or components, e.g. electronic or pneumatic modules; Details thereof for digital control, e.g. for generating, counting or comparing pulses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/13—Parts concerned of the handled material
    • B65H2701/131—Edges
    • B65H2701/1311—Edges leading edge
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G21/00—Arrangements not provided for by groups G03G13/00 - G03G19/00, e.g. cleaning, elimination of residual charge

Definitions

  • the present invention relates to a staple removing device.
  • a staple removal device that removes staples bound from a bundle of sheets from the bundle of sheets.
  • the staple removing device described in Patent Document 1 the entire surface of a sheet bundle including staples is pressed by a roller and is compressed and deformed so as to crush the staples. With the staple that has been compressed and deformed, a portion of the sheet bundle closed by the staple is punched (perforated), and the holding force of the staple against the sheet bundle is lost. Thereafter, the staples that have lost the holding power for the sheet bundle are collected from the sheet bundle.
  • a staple removing apparatus removes a staple from the sheet bundle, a detection unit that detects a position of the staple that bound the bundle of sheets, a striking unit that strikes the staples, and the staple. And a removing unit.
  • FIG. 1 is a schematic diagram of an office paper reuse printer 1000 that employs a staple removing apparatus 1 according to a first embodiment.
  • Schematic diagram of the staple removing apparatus 1 An ideal graph showing the time change of force and static force due to impact
  • Block diagram showing the staple removing apparatus 1 Schematic of the transport unit 110 and the detection unit 10 Schematic of detection roller pair 50 The figure which looked at the detection part 10 from the orthogonal direction side View of the striking unit 20 as viewed from the conveyance direction side The figure which looked at the hit
  • FIG. 1 is a schematic diagram of an office paper reuse printer 1000 in which the staple removing apparatus 1 according to the first embodiment is employed.
  • the office paper reuse printer 1000 shown in FIG. 1 includes a printer main body 1002, an ink erasing device 1001, and a staple removing device 1.
  • a printed paper printed with ink that can be erased by heating is heated by an ink erasing device 1001 to erase the ink.
  • the paper after ink erasure is transported to the paper stacker 1002a in the printer main body 1002, and is again used for printing.
  • the staple removing device 1 automatically removes the staples from the plurality of printed sheets (sheet bundle) bound with staples and conveys them to the ink erasing device 1001. That is, when the printed paper bundle is bound with staples, the paper bundle is set in the paper stacker 900, and when the conveyance is started, the staple removing device 1 detects the staple position. The staple at the detected position is struck by a striking member and is compressed and deformed so that the staple is crushed. This punches the sheet bundle. Staples that have lost their holding power on the sheet bundle are removed from the sheet bundle. The sheet bundle from which the staple is removed is conveyed to the ink erasing apparatus 1001 one by one or plural sheets.
  • FIG. 2 is a schematic view of the staple removing apparatus 1.
  • the staple removal apparatus 1 includes a conveyance unit 110, a detection unit 10, a striking unit 20, and a removal unit 30 from the conveyance start position side of the sheet bundle 101.
  • the sheet bundle 101 is conveyed to the ink erasing device 1001 by the conveying unit 110.
  • the detection unit 10, the striking unit 20, and the removal unit 30 are provided in this order from the conveyance start side.
  • the transport unit 110 transports the sheet bundle 101 to the detection unit 20.
  • the detection unit 10 detects a position in the conveyance direction of the staple 100 in the sheet bundle 101 and a position in a direction orthogonal to the conveyance direction (hereinafter referred to as an orthogonal direction).
  • the striking unit 20 strikes the staple 100 on the sheet bundle 101 detected by the detecting unit 10 and compresses and deforms the staple 100 so as to crush it. A portion of the sheet bundle 101 closed by the staple 100 is punched, and the holding force of the staple 100 with respect to the sheet bundle 101 is lost.
  • the removing unit 30 bends the sheet bundle 101 and causes the staple 100 to protrude from the sheet bundle 101.
  • the removing unit 30 hooks the removing member on the protruding staple 100 and removes it from the sheet bundle 101.
  • the sheet bundle 101 from which the staple 100 has been removed is conveyed to the ink erasing apparatus 1001.
  • the striking unit 20 of the staple removing device 1 compresses and deforms the staple 100 by striking using an impact force. This is because the use of impact force is more efficient with less energy compared to the case where the staple 100 is compressed and deformed by statically applying a force with a roller as in the staple removing device described in Patent Document 1. This is because the staple 100 can be compressed and deformed.
  • FIG. 3 is an ideal graph showing the temporal change of force due to impact and static force.
  • the horizontal axis represents time t, and the vertical axis represents force f.
  • F s represents the time variation of the static force
  • F d represents a time change of force by striking.
  • Static force is a force whose magnitude does not change over time.
  • f 0 is the minimum force necessary for the staple to be compressed and deformed.
  • the time change of the force in the case of loading a static force to the staple 100 by the rollers is as F s.
  • the staple removing device described in Patent Document 1 always applies a constant force f 1 exceeding f 0 from the time when the sheet bundle 101 starts to pass through the roller at time 0 until the roller addition is completed at time t 3 . Accordingly, impulse necessary to compressive deformation of the staples 100, I s becomes of formula 1, the energy E s is required to accompany it.
  • I s is equivalent to the area of the vertical line portion in FIG. 3.
  • Time variation of force applied by the staple remover 1 to staple 100 in this embodiment is as F d. Striking portion 20 of the staple remover 1, blow by, from time t1 to time t2, the maximum force to load force F d such that f 2 more than f 0 to the staple 100. For this reason, the impulse required for compressing and deforming the staple 100 is I d represented by Equation 2, and the energy E d associated therewith is required.
  • I d corresponds to the area of the ray part in FIG.
  • I d is a value smaller than I s . Therefore, E d may be smaller than E s . That is, the staple removing apparatus 1 according to the present embodiment that compresses and deforms the staple 100 by striking using an impact force is compared with the case where the staple 100 is compressed and deformed by applying a static force by a roller or the like. The staple 100 can be efficiently compressed and deformed with less energy.
  • FIG. 4 is a block diagram showing the staple removing apparatus 1.
  • the conveyance unit 110, the detection unit 10, and the striking unit 20 are controlled by the control unit 15.
  • the pulse generator 501 outputs a pulse signal to the control unit 15 at regular time intervals.
  • the control unit 15 is provided with a counter circuit, and the counter circuit counts pulse signals output from the pulse generator 501.
  • the transport unit 110 includes a transport roller 110a and an auxiliary roller 110b, a stepping motor 156 that rotates the transport roller 110a, and a motor drive unit 155.
  • the control unit 15 outputs a control signal to the motor driving unit 155 so as to drive a stepping motor 156 described later in synchronization with the pulse signal. Details will be described later.
  • the detection unit 10 includes a sensor 159 that detects the leading end of the sheet bundle 101 in the conveyance direction, a detection roller pair 50 and a measurement unit 55 for detecting the position of the staple 10 in the sheet bundle 101.
  • the measurement unit 55 applies a voltage to the detection roller pair 50 and measures the voltage change.
  • the control unit 15 estimates the position of the staple 100 on the sheet bundle 101. Details will be described later.
  • the striking unit 20 includes a striking unit 201 including a striking block 21, a gear driving unit 213c that moves the striking block 21 via a gear 213b, a rotating claw 202, and an actuator 204 for rotating the rotating claw 202, A unit driving unit 29 for moving the unit in the orthogonal direction and a sensor 160 for detecting the leading end of the sheet bundle 101 in the conveyance direction are provided.
  • the control unit 15 outputs a control signal to the unit driving unit 29 and moves the striking unit 201 in the orthogonal direction.
  • the control unit 15 outputs a control signal to the actuator 204, rotates the rotary claw 202, and opens the striking block 21.
  • the control unit 15 outputs a control signal to the gear driving unit 213c, drives the gear driving unit 213c, and moves the striking block 21. Details will be described later.
  • FIG. 5 is a schematic diagram of the transport unit 110 and the detection unit 10.
  • the conveyance unit 110 includes a conveyance roller 110 a and an auxiliary roller 110 b so as to sandwich the sheet bundle 101.
  • the conveyance roller 110 a rotates by receiving a driving force from the stepping motor 156 and conveys the sheet bundle 101.
  • the auxiliary roller 110b is provided so as to apply a certain pressure to the sheet bundle 101 so that the sheet bundle 101 does not slide on the conveyance roller 110a, and assists the conveyance of the sheet bundle 101 by the conveyance roller 110a.
  • the detection unit 10 includes, in order from the side where the sheet bundle 101 is conveyed, a sensor 159 that detects the leading end of the sheet bundle 101 in the conveyance direction, and a detection roller pair 50 that detects the position of the staple 100 of the sheet bundle 101.
  • the position in the transport direction of the staple 100 on the sheet bundle 101 is detected by the sensor 159 and the detection roller pair 50.
  • the position in the orthogonal direction of the staple 100 on the sheet bundle 101 is detected by the detection roller pair 50.
  • FIG. 6 is a schematic diagram of the detection roller pair 50.
  • the detection roller pair 50 includes a first conductive roller 51 and a second conductive roller 52.
  • the first conductive roller 51 is configured such that an insulating roller 512 is fitted on a shaft 511 that is rotatably supported, and a plurality of partial conductive rollers 51 a that are conductors are provided on the outer periphery of the insulating roller 512. It has a structure in which .about.51e is fitted. Further, an insulating layer 513 is provided between each of the partial conductive rollers 51a to 51e, so that the partial conductive rollers 51a to 51e are not in electrical contact with each other.
  • the second conductive roller 52 has a structure in which a conductive roller 522 is fitted to a shaft 521 that is rotatably supported.
  • the shaft 521 and the roller 522 may be integrated.
  • a belt 157 shown in FIG. 5 is stretched between the conveyance roller 110a.
  • the second conductive roller 52 is grounded by a ground wire 523 or the like.
  • each of the partial conductive rollers 51a to 51e is provided with a measuring unit 55 that applies a voltage to the surfaces of the partial conductive rollers 51a to 51e and measures the voltage.
  • the measurement unit 55 includes measurement elements 55a to 55e.
  • the measuring element 55a brings the tip of the conducting wire into contact with the surface of the partial conductive roller 51a via an electric brush or the like with the resistor R interposed from the power supply Vcc. And the voltage value concerning resistance R is measured.
  • the sheet bundle 101 that has been conveyed passes between the first conductive roller 51 and the second conductive roller 52.
  • the paper portion of the sheet bundle 101 is between the partial conductive rollers 51 a to 51 e and the second conductive roller 52, there is no electrical contact.
  • the current from the power supply Vcc passes through one of the partial conductive rollers 51a to 51e, and the staple 100 and the second conductive roller. 52, it goes out to the ground wire 523.
  • the measurement unit 50 detecting changes in the voltage values of the measurement elements 55a to 55e.
  • the measurement unit 50 continuously outputs the voltage values of the measurement elements 55a to 55e as measurement signals to the control unit 15, and the control unit 15 changes the partial conductive rollers 51a to 51e in which the values of the measurement elements 55a to 55e have changed. Is assumed to be the position of the staple 100 in FIG.
  • the length of each of the partial conductive rollers 51 a to 51 e in the rotation axis direction is preferably longer than the width of the staple shoulder of the staple 100.
  • the width of the insulating layer 513 in the rotation axis direction is preferably shorter than the width of the staple shoulder of the staple 100 in order to prevent detection failure when the staple 100 passes directly under the insulating layer 513.
  • the staple 100 may be bound at a position across the insulating layer 513.
  • the detection unit 10 causes the staple 100 to be the insulating layer 513. Even in the case where the staples are bound to each other, the position of the staple 100 on the sheet bundle 101 in the orthogonal direction can be determined.
  • the partial conductive rollers 51a to 51e and the measuring elements 55a to 55e are each described as five, but the present invention is not limited to this.
  • the detection unit 10 can detect the position of the staple 100 on the sheet bundle 101 in the orthogonal direction with higher accuracy.
  • FIG. 7 is a diagram of the detection unit 10 as viewed from the orthogonal direction side.
  • the sensor 159 detects the leading end of the sheet bundle 101 conveyed from the conveyance unit 110.
  • the sensor 159 may be an optical sensor.
  • the sensor 159 includes a light source 159a and a light receiving sensor 159b.
  • the light source 159a and the light receiving sensor 159b are provided so as to sandwich the conveyance path of the sheet bundle 101.
  • the light receiving sensor 159b receives light from the light source 159a. While the sheet bundle 101 passes through the sensor 159, the light receiving sensor 159b does not receive light from the light source 159a.
  • the sensor 159 outputs a first detection signal to the control unit 15 with a trigger when the light receiving sensor 159b stops receiving light from the light source 159a.
  • the control unit 15 starts counting the number of pulse signals output from the pulse generator 501.
  • the control unit 15 When the staple 100 reaches the detection roller pair 50 and the voltage values of the measuring elements 55a to 55e change, the control unit 15 starts counting the number of pulse signals and then outputs the pulse signal from when the voltage value changes. The number of times is stored as the number of counts. That is, the control unit 15 stores the number of counts of the pulse signal output from the pulse generator 501 from when the leading edge of the sheet bundle 101 is detected by the sensor 159 until the voltage change is detected by the measurement unit 55. This count value is used in the hitting unit 20.
  • the control unit 15 can associate the transport distance of the sheet bundle 101 with the number of counts by storing the number of counts. Accordingly, the detection unit 10 can detect the position of the staple 100 on the sheet bundle 101 in the transport direction.
  • FIG. 8 is a view of the striking unit 20 as viewed from the conveyance direction side.
  • the striking unit 20 includes a striking unit 201 including a striking block 21 that strikes the staple 100 and a striking base 22 provided at a position sandwiching the sheet bundle 101 from the striking block 21.
  • the striking unit 201 is provided so as to be movable in the orthogonal direction.
  • the striking unit 201 may be configured such that the guide shaft 28 is passed in the orthogonal direction and moved in the orthogonal direction by a unit driving unit 29 provided in the striking unit 201. Thereby, the striking unit 201 can move to the position of the staple 100 in the orthogonal direction detected by the detection unit 10. It is desirable that the number of staples 100 to which the striking unit 20 strikes at a time is one.
  • the striking block 21 in this embodiment is columnar and includes a surface 21 a that strikes the staple 100 and a surface 21 b to which the spring 25 is attached.
  • the spring 25 is attached to a surface 21 b opposite to the surface 21 a that strikes the staple 100.
  • the spring 25 is attached to the fixed plate 30 provided in the striking unit 201.
  • auxiliary shafts 24 a and 24 b are provided on the fixed plate 30 in order to assist the hitting of the hitting block 21.
  • the auxiliary shafts 24a and 24b are provided so that the axial direction is parallel to the striking direction.
  • the striking block 21 is provided with shaft holders 23a, b through which the auxiliary shafts 24a, b are passed along the orthogonal direction. Thereby, the striking direction by the striking block 21 can be straightened.
  • the fixed plate 30 is provided with a ratchet mechanism 27 for holding and releasing the compressed spring 25.
  • the ratchet mechanism 27 includes a rotating claw 202, a pressing spring 203, and an actuator 204.
  • the rotating claw 202 rotates around a rotating shaft 205 provided at the end of the fixed plate 30.
  • the rotating claw 202 is provided at a position where the striking block 21 can be held by hooking the claw on the shaft holder 23b.
  • Rotating claw 202 is pressed in a direction (pressing direction) that rotates clockwise in FIG.
  • the rotation claw 202 is moved in the direction opposite to the pressing direction of the pressing spring 203 by the shaft holder 23b (counterclockwise in FIG. 8).
  • the shaft holder 23b exceeds the claw of the rotary claw 202
  • the rotary claw 202 is again pressed by the pressing spring 203 and rotates, and is held by the shaft holder 23b to hold the striking block 21. That is, the claw of the rotary claw 202 and the shaft holder 23b perform a ratchet function.
  • the actuator 204 is provided at a position where the expansion and contraction of the pressing spring 203 can be controlled.
  • the actuator 204 is provided on the fixed plate 30.
  • the actuator 204 pulls the pressing spring 203 in the direction opposite to the pressing direction while the striking block 21 is held by the rotating claw 202.
  • the striking block 21 is released from the rotary claw 202 and strikes the staple 100 by the elastic energy of the spring 25.
  • FIG. 9 is a view of the striking portion 20 as viewed from the orthogonal direction side.
  • the spring compression mechanism 213 includes a rack 213a, a gear 213b, and a gear driving unit 213c.
  • the rack 213 a is provided on the side surface of the striking block 21.
  • the gear 213b is provided so as to mesh with the rack 213a.
  • the gear 213 b moves the striking block 21 in the compression direction of the spring 25 and compresses the spring 25 by a gear driving unit 213 c provided in the striking unit 201.
  • the gear 213b includes a meshing portion having teeth and a non-meshing portion having no teeth.
  • the meshing part and the non-meshing part are provided such that when the striking block 21 reaches a position where it is held by the ratchet mechanism 27, the meshing part is changed to the non-meshing part. This prevents the rack 213a and the gear 213b from meshing when hitting by the hit block 21.
  • the control unit 15 moves the striking unit 201 to a position in the orthogonal direction of the staple 100 estimated by the detection unit 10.
  • the sensor 160 detects the leading end of the sheet bundle 101.
  • the sensor 160 may be an optical sensor similar to the sensor 159.
  • the distance in the conveyance direction from the sensor 160 to the striking block 21 is the same as the distance in the conveyance direction from the sensor 159 to the detection roller pair 50 in the detection unit 10.
  • the sensor 160 When the leading edge of the sheet bundle 101 is detected, the sensor 160 outputs a second detection signal to the control unit 15.
  • the control unit 15 starts counting the number of pulse signals output from the pulse generator 501.
  • the control unit 15 outputs a control signal to the actuator 204 when the number of times of the pulse signal reaches the same number of counts stored in the detection unit 10 described above, and releases the striking block 21 from the rotary claw 202.
  • the hitting unit 20 can hit the staple 100 at the position detected by the detecting unit 10.
  • FIG. 10 is an image diagram illustrating a state in which the staple 100 perforates the sheet bundle 101.
  • FIG. 10A shows the state of the staple 100 before hitting.
  • FIG. 10B shows the state of the staple 100 after hitting.
  • the staple 100 is hit by the hit block 21
  • the staple 100 is compressed and deformed to punch the sheet bundle 100.
  • the staple 100 loses the holding force with respect to the sheet bundle 101 and can be removed by the removing unit 30.
  • FIG. 11 is a view of the removing unit 30 as viewed from the orthogonal direction side.
  • FIG. 11A shows the state of the staple 100 before removal.
  • FIG. 11B shows the state of the staple 100 being removed.
  • FIG. 11C shows the state of the staple 100 collected after removal.
  • the removing unit 30 guides the conveyance of the sheet bundle 101, the auxiliary roller 31 for curving the sheet bundle 101, the blade 32 that rotates around the rotation shaft 34, and removes the staple 100 from the sheet bundle 101. And a guide roller pair 33 for conveying the sheet bundle 101 to the ink erasing apparatus 1001 and a collection mechanism 35 for collecting the removed roller.
  • the length of the blade 32 in the orthogonal direction is desirably equal to or greater than the length of the sheet bundle in the orthogonal direction so that the staple 100 can be removed regardless of the binding position of the staple 100 in the sheet bundle 101.
  • a mechanism is provided that allows the removal portion including the blade 32 and its rotating shaft 34 to move in the perpendicular direction.
  • a configuration in which the staple 100 is moved to a position to be removed based on the staple position information by the detection unit 10 may be employed.
  • the sheet bundle 101 conveyed from the striking unit 20 side passes through the auxiliary roller 31 and then enters the lower portion of the blade 32 and passes between the guide roller pair 33 in a bent state.
  • the blade 32 rotates to the position where the tip is in contact with the sheet bundle 101.
  • the blade 32 is driven by a blade driving unit (not shown).
  • the blade driving unit is preferably provided with a detection sensor (not shown) for detecting the leading edge of the sheet bundle 101 and rotates the blade 32 when the leading edge of the sheet bundle 101 is detected.
  • the removed staple 100 is collected by the collection mechanism 35.
  • the recovery mechanism 35 may be a permanent magnet, for example.
  • the staple 100 removed by the blade 32 is collected by being attracted to the permanent magnet. Therefore, the permanent magnet is provided at a position where the staple 100 removed by the blade 32 can be attracted.
  • the staple removing device described in Patent Document 1 since the entire surface of the sheet bundle is pressed with a high pressure by the roller, the sheet posture at the time of sheet conveyance cannot be accurately maintained, or the sheet has deformation such as curl. In some cases, the roller may cause wrinkles on the entire surface of the sheet bundle, resulting in a defect in the sheet bundle after removing the staples, making it unsuitable for reuse.
  • the staple removing apparatus 1 according to the present embodiment the staple 100 and the peripheral portion of the staple bundle 100 are hit, so the staple 100 is removed from the bundle 100 without causing wrinkles in the bundle 100. Can do. Therefore, in the present embodiment, it is possible to provide a staple removing apparatus suitable for reusing the sheet bundle 101.
  • a blower (not shown) may be provided between the removing unit 30 and the ink erasing device 1001.
  • the blower blows an air flow at a certain pressure or more on the side of the sheet bundle 101 from which the staple 100 is removed.
  • the sheet bundle 101 conveyed to the ink erasing apparatus 1001 can be separated into individual sheets, which is suitable when the printer main body 1002 reprints the sheets.
  • the staple removing apparatus 2 is that the staple 100 is struck by the striking block 21 in the striking unit 20 of the staple removing apparatus 1 and then the staple 100 is vibrated. It is different from the case of the form.
  • FIG. 12 is a view of the striking portion 20 in the second embodiment as viewed from the orthogonal direction side.
  • the striking block 21 is further vibrated by the spring compression mechanism 213 while the striking block 21 is in contact with the sheet bundle 101. Given.
  • the gear driving unit 213c rotates the gear 213b until the meshing portion of the gear 213b meshes with the rack 213a. In a state where the gear 213b is engaged with the rack 213a, the gear driving unit 213c reciprocates the gear 213b to vibrate the striking block 21.
  • the staple 100 that has been compressed and deformed by the striking block 21 and perforated the sheet bundle 101 is vibrated, so that the perforated hole can be widened in the sheet bundle 101, and the removal of the staple 100 by the removing unit 30 is further facilitated. be able to.
  • the staple removing device 3 makes it easier to punch the sheet bundle 101 when the striking unit 20 strikes the staple 100 by dropping a water droplet at the position of the staple 100 in the sheet bundle 101.
  • FIG. 13 is a schematic diagram of a water droplet supply unit 300 according to the third embodiment.
  • the water droplet supply unit 300 is provided between the detection unit 10 and the striking unit 20.
  • the water droplet supply unit 300 includes a tank 701 for storing water, a pump 702 for supplying water, a nozzle 703 for dropping the water droplet 704 on the paper bundle 101, and a sensor 161 for detecting the leading end of the paper bundle 101. Including.
  • FIG. 14 is a block diagram showing the staple removing device 3. About the conveyance part 110, the detection part 10, the hit
  • the pump 702 is controlled by the control unit 15.
  • the sensor 161 may be an optical sensor similar to the sensor 159.
  • the distance in the conveyance direction from the sensor 161 to the nozzle 703 is the same as the distance in the conveyance direction from the sensor 159 to the detection roller pair 50 in the detection unit 10. Accordingly, the water droplet 704 can be dropped on the staple 100 using the counter value stored in the control unit 15 in the detection unit 10.
  • the sensor 161 When the leading edge of the sheet bundle 101 is detected, the sensor 161 outputs a third detection signal to the control unit 15.
  • the control unit 15 starts counting the number of pulse signals output from the counter (pulse generator) 501.
  • the control unit 15 outputs a control signal to the pump 702 and causes the water droplet 704 to hang when the number of pulse signals reaches the same number as the count stored in the detection unit 10 described above.
  • the sheet bundle 101 can be easily punched.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

La présente invention concerne un dispositif de retrait d'agrafes conçu pour permettre la réutilisation d'un paquet de papier une fois les agrafes retirées de celui-ci. Ledit dispositif de retrait d'agrafes est pourvu d'une section de détection qui détecte les emplacements des agrafes reliant le paquet de papier ; d'une section de percussion qui percute les agrafes ; et d'une section de retrait qui retire les agrafes du paquet de papier. Ledit dispositif de retrait d'agrafes est caractérisé en ce que la section de percussion percute les agrafes, ce qui fait subir aux agrafes une déformation compressive qui aplatit les agrafes, et perfore le paquet de papier au moyen des agrafes déformées par compression, et en ce que la section de retrait utilise un ou plusieurs rouleaux et plie le paquet de papier au moyen des rouleaux, amenant ainsi les agrafes à faire saillie depuis la surface du paquet de papier et retirant ainsi les agrafes du paquet de papier.
PCT/JP2010/000484 2010-01-28 2010-01-28 Equipement de retrait d'agrafes WO2011092737A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2010/000484 WO2011092737A1 (fr) 2010-01-28 2010-01-28 Equipement de retrait d'agrafes
JP2011551579A JPWO2011092737A1 (ja) 2010-01-28 2010-01-28 ステープル除去装置
US13/560,072 US20130168621A1 (en) 2010-01-28 2012-07-27 Staple removal equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2010/000484 WO2011092737A1 (fr) 2010-01-28 2010-01-28 Equipement de retrait d'agrafes

Related Child Applications (1)

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US13/560,072 Continuation US20130168621A1 (en) 2010-01-28 2012-07-27 Staple removal equipment

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WO2011092737A1 true WO2011092737A1 (fr) 2011-08-04

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WO2016194779A1 (fr) * 2015-05-29 2016-12-08 グラドコジャパン株式会社 Dispositif de traitement de feuille
JP2018192563A (ja) * 2017-05-17 2018-12-06 グラドコジャパン株式会社 ステープル除去装置
WO2019116426A1 (fr) * 2017-12-11 2019-06-20 株式会社Pfu Dispositif de traitement d'agrafes et procédé de traitement d'agrafes

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US9938100B2 (en) 2014-12-30 2018-04-10 Kodak Alaris Inc. System and method for metallic object detection in a media transport system
US9617097B2 (en) * 2014-12-30 2017-04-11 Kodak Alaris Inc. System and method for metallic object detection in a media transport system
US10150632B2 (en) 2014-12-30 2018-12-11 Kodak Alaris Inc. System and method for metallic object detection in a media transport system
JP6622930B2 (ja) * 2016-12-19 2019-12-18 株式会社Pfu 綴じ部材除去装置

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JPH06186807A (ja) * 1992-12-16 1994-07-08 Ricoh Co Ltd ステープル除去機能付きシート搬送装置
JP2001063910A (ja) * 1999-08-27 2001-03-13 Minolta Co Ltd 自動原稿搬送装置
US6634267B1 (en) * 1997-10-08 2003-10-21 Hadewe B.V. Apparatus and method for removing fasteners from documents

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JPH06186807A (ja) * 1992-12-16 1994-07-08 Ricoh Co Ltd ステープル除去機能付きシート搬送装置
US6634267B1 (en) * 1997-10-08 2003-10-21 Hadewe B.V. Apparatus and method for removing fasteners from documents
JP2001063910A (ja) * 1999-08-27 2001-03-13 Minolta Co Ltd 自動原稿搬送装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016194779A1 (fr) * 2015-05-29 2016-12-08 グラドコジャパン株式会社 Dispositif de traitement de feuille
JP2018192563A (ja) * 2017-05-17 2018-12-06 グラドコジャパン株式会社 ステープル除去装置
WO2019116426A1 (fr) * 2017-12-11 2019-06-20 株式会社Pfu Dispositif de traitement d'agrafes et procédé de traitement d'agrafes
JPWO2019116426A1 (ja) * 2017-12-11 2020-07-02 株式会社Pfu ステープル処理装置及びステープル処理方法

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US20130168621A1 (en) 2013-07-04

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